chore: regens API reference docs (#889)

diff --git a/docs/dyn/doubleclickbidmanager_v1.sdf.html b/docs/dyn/doubleclickbidmanager_v1.sdf.html
index 8427ee8..be25e66 100644
--- a/docs/dyn/doubleclickbidmanager_v1.sdf.html
+++ b/docs/dyn/doubleclickbidmanager_v1.sdf.html
@@ -75,20 +75,20 @@
 <h1><a href="doubleclickbidmanager_v1.html">DoubleClick Bid Manager API</a> . <a href="doubleclickbidmanager_v1.sdf.html">sdf</a></h1>
 <h2>Instance Methods</h2>
 <p class="toc_element">
-  <code><a href="#download">download(body)</a></code></p>
+  <code><a href="#download">download(body=None)</a></code></p>
 <p class="firstline">Retrieves entities in SDF format.</p>
 <h3>Method Details</h3>
 <div class="method">
-    <code class="details" id="download">download(body)</code>
+    <code class="details" id="download">download(body=None)</code>
   <pre>Retrieves entities in SDF format.
 
 Args:
-  body: object, The request body. (required)
+  body: object, The request body.
     The object takes the form of:
 
 { # Request to fetch stored inventory sources, campaigns, insertion orders, line items, TrueView ad groups and ads.
     "filterType": "A String", # Filter type used to filter entities to fetch. PARTNER_ID and INVENTORY_SOURCE_ID may only be used when downloading inventory sources.
-    "version": "A String", # SDF Version (column names, types, order) in which the entities will be returned. Default to 3.1.
+    "version": "A String", # SDF Version (column names, types, order) in which the entities will be returned. Default to 5.
     "fileTypes": [ # File types that will be returned. If INVENTORY_SOURCE is requested, no other file types may be requested.
         # 
         # Acceptable values are: